Drinking vessel



FIG. 1 is a top, front perspective view of a drinking vessel showing my new design;

FIG. 2 is a front view thereof:

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a top view thereof.

The broken lines in the drawing depict portions of the drinking vessel that form no part of the claimed design. 

CLAIM The ornamental design for a drinking vessel, as shown and described. 